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KTmF4

Alexandria ALEX

Alex-ID: agm005803656 · Space group: Pnma (#62)

Basic Information

Formula
KTmF4
Alex-ID
agm005803656
Elements
3
Sites
24
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
334.84
ų
Cell a
3.5605
Å
Cell b
6.0644
Å
Cell c
15.5075
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KTmF4
K
4.00 · 16.7%
Tm
4.00 · 16.7%
F
16.00 · 66.7%

Energy & Stability

Energy above hull
0.0427
eV/atom
Formation energy
-4.0277
eV/atom
Corrected total energy
-141.6872
eV
Raw total energy
-141.6872
eV

Electronic Structure

Indirect band gap
7.1178
eV
Direct band gap
7.2103
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0678
μB

Additional Information

Prototype ID

ABC4_370_spg62

Decomposition

KTmF4

Computed at

2023-07-28 07:26:11.255186

Citation

Alexandria website
https://alexandria.icams.rub.de/
Attribution

The crystal structure and related material properties of this entry were obtained from the Alexandria database (Alex-ID: agm005803656).

Reference

Th. Cavignac, J. Schmidt, P.-P. De Breuck, A. Loew, T. F. T. Cerqueira, H.-C. Wang, A. Bochkarev, Y. Lysogorskiy, A. H. Romero, R. Drautz, S. Botti and M. A. L. Marques. AI-Driven expansion and application of the Alexandria database. J. Phys. Mater. 9, 025014 (2026). https://doi.org/10.1088/2515-7639/ae6620

BibTeX
@article{Cavignac2026Alexandria,
  author  = {Cavignac, Th{\'e}o and Schmidt, Jonathan and De Breuck, Pierre-Paul and Loew, Antoine
             and Cerqueira, Tiago F. T. and Wang, Hai-Chen and Bochkarev, Anton
             and Lysogorskiy, Yury and Romero, Aldo H. and Drautz, Ralf and Botti, Silvana
             and Marques, Miguel A. L.},
  title   = {{AI}-Driven expansion and application of the {A}lexandria database},
  journal = {Journal of Physics: Materials},
  year    = {2026},
  volume  = {9},
  number  = {2},
  pages   = {025014},
  doi     = {10.1088/2515-7639/ae6620},
  url     = {https://doi.org/10.1088/2515-7639/ae6620}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# CIF generated by HEAS from Alexandria entry agm005803656
data_agm005803656
_cell_length_a     3.56050
_cell_length_b     6.06437
_cell_length_c     15.50754
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       334.84201
_symmetry_space_group_name_H-M 'P 1'
_symmetry_Int_Tables_number 1
loop_
_symmetry_equiv_pos_as_xyz
  'x, y, z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
  K1 K 0.75000 0.77541 0.79870 1.00000
  K2 K 0.25000 0.22459 0.20130 1.00000
  K3 K 0.25000 0.72459 0.29870 1.00000
  K4 K 0.75000 0.27541 0.70130 1.00000
  Tm1 Tm 0.75000 0.24964 0.44195 1.00000
  Tm2 Tm 0.25000 0.75036 0.55805 1.00000
  Tm3 Tm 0.25000 0.25036 0.94195 1.00000
  Tm4 Tm 0.75000 0.74964 0.05805 1.00000
  F1 F 0.75000 0.89087 0.62867 1.00000
  F2 F 0.25000 0.10913 0.37133 1.00000
  F3 F 0.25000 0.60913 0.12867 1.00000
  F4 F 0.75000 0.39087 0.87133 1.00000
  F5 F 0.75000 0.86751 0.46399 1.00000
  F6 F 0.25000 0.13249 0.53601 1.00000
  F7 F 0.25000 0.63249 0.96399 1.00000
  F8 F 0.75000 0.36751 0.03601 1.00000
  F9 F 0.75000 0.99610 0.94436 1.00000
  F10 F 0.25000 0.00390 0.05564 1.00000
  F11 F 0.25000 0.50390 0.44436 1.00000
  F12 F 0.75000 0.49610 0.55564 1.00000
  F13 F 0.75000 0.90312 0.18532 1.00000
  F14 F 0.25000 0.09688 0.81468 1.00000
  F15 F 0.25000 0.59688 0.68532 1.00000
  F16 F 0.75000 0.40312 0.31468 1.00000
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